<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>光波扩散加载</title>
    <link type="text/css" rel="stylesheet" href="./index.css">
    <style>
        body {
            height: 100vh;
            background-color: rgb(224, 224, 224);
        }
    </style>
</head>

<body>
    <div class="lightwave_box">
        <div class="lightwave_a "></div>
        <div class="lightwave_b "></div>
        <div class="lightwave_c "></div>
        <div class="fixed_d "></div>
    </div>
</body>

</html>